Re: Convert Zoned to Packed

[Robin Vowels]

On 2022-01-08 07:25, Steve Smith wrote:

Well, I'm not familiar with the VPKZ, and if not available, or

traditionally, you must code two PACKs for pieces of zoned fields longer

than 16 bytes.

If you use two PACK instructions, it helps to PACK the upper
bytes first.

 Same applies conversely for UNPK, although ED can do it
(and much more) in one pass.

The maximum lengths for SS instructions with two lengths is 16. So, ITHM

16 zoned digits.